Overview

overview

10

Static

static

10

jaffacakes...dc.exe

windows10-2004-x64

10

jaffacakes...dc.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    jaffacakes118_3de08c1c2b3b58fc7b259ff2454a7190fa390764eed27d212ca91c736468dedc.bin
  • Size 658KB
  • Sample260912-nccebaverb
  • SHA256 3de08c1c2b3b58fc7b259ff2454a7190fa390764eed27d212ca91c736468dedc
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
darkcometbrouteurdefense_evasiondiscoveryexecutionpersistencerattrojan

Malware Config

Extracted

Family

  • darkcomet

Botnet

  • BROUTEUR

C2

  • voltazur.ddns.net:1604

Mutex

  • DC_MUTEX-CLRHTUN

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    cVxQXF1dUQRM

  • install

    true

  • offline_keylogger

    false

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Targets

    • Target
      jaffacakes118_3de08c1c2b3b58fc7b259ff2454a7190fa390764eed27d212ca91c736468dedc.bin
    • Size 658KB
    • SHA256 3de08c1c2b3b58fc7b259ff2454a7190fa390764eed27d212ca91c736468dedc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    brouteurdefense_evasiondiscoveryexecutiondarkcometpersistencerattrojan

    • Family: Darkcomet

      DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

      trojanratdarkcomet

    • Modifies WinLogon for persistence

      persistence

    • Modifies firewall policy service

      defense_evasion

    • Windows security bypass

      defense_evasiontrojan

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      defense_evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Executes dropped EXE

    • Windows security modification

      defense_evasiontrojan

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Command Shell

1
T1059.003

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

3
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

2
T1562.001

Modify Registry

5
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks